Actually, I use my fingers for other purposes, and no, IT'S NOT what you're thinking

And maybe I'm wagging my finger, but you didn't answer my question, huh?
What path are you aiming for? Pure Aura, or Aura Queen of Hell?
This game can progress in very different ways depending on your objective. The path of corruption is the easy way forward, but with a lot of penalties in the long run if you want to avoid playing the brainwashed bimbo who says yum yum as soon as she sees a cock.
No need to replay the first few days. Depending on whether you want to play the pure or minimally corrupted path, you don't even need to open any mental chambers, or the minimum in order to purge your corruption points, if really necessary.
Do not remove the collar every day, an option that should only be used on bosses. Don't forget that there are also potions and other brews that can compensate for the loss of willpower points and the increase in your corruption points.
Except for corruption and lewdness, every day your stats are reset to new - unlike monsters and other creatures - so your will is restored too.
Then, you can start a fight without finishing it the same day, because the enemies remain in the same state, and when you come back, you can finish with this already weakened group of enemies. This allows you to evaluate what you need to improve in your stats. You can then buff your stats by learning new spells and skills, improving them, you can participate in duels, which improves the effectiveness of your combat skills.
Don't forget that you can also consult the wiki to advance your quests.
My final suggestion is that, whatever path you want to take, you can safely unlock the 4 sub-chambers of the first of the three main mental room. The changes made are often delayed by a few days to take effect, such as changes in clothing and physical appearance, Alicia will try to take Aura shopping.